Home / 97,721.10-146,581.65-66,228.30

Finding the Fourth Proportional to 97,721.10, 146,581.65 and 66,228.30

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Solution

The fourth proportional to 97,721.10, 146,581.65 and 66,228.30 is: 99,342.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,721.10 : 146,581.65 = 66,228.30 : x
  2. Step 2: Convert to fraction form
    97,721.10/146,581.65 = 66,228.30/x
  3. Step 3: Cross multiply
    97,721.10x = 146,581.65 × 66,228.30
  4. Step 4: Simplify right side
    97,721.10x = 9,707,853,490.70
  5. Step 5: Solve for x
    x = 9,707,853,490.70/97,721.10
  6. Step 6: Final answer
    x = 99,342.45

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.